Improved evapoeatoe



J. J. STQUT. Evaporator.

Patented Jany 8, 1867.

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IMPROVED EVAPORATOR.

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TO ALLwHoM IT MAY CONCERN:

Be it knownthat I, JOSEPH J. STOUT, of Grccnsburg, in the county ofDecatur, and State of Indiana, have invented a new'and usefulimprovement in Evaporators for reducing the juice-of sorghum; and I dohereby declare that the following is a full, clear, and exactdescription of the same, reference being had to the annexed drawings,made part of this specification, in which-- Figure 1 is a perspectiveview.

Figure 2 is a vertical transverse section on the line a: x, fig. 1.

Figure 3 is a similar section on the line 3 3 fig. 1; and

Figure 4 is a vertical longitudinal central section.

In the different figures the same letters refer to identical parts.

A is the pan of the evaporator, which I make of a curved form, as shown.It is closed at the ends and divided by longitudinal partitions intoseveral compartments. In the drawings I show four on each side of theupper and central one. In the middle of the evaporator, and immediatelyover the fire, I constructia compartment of about double the width ofthe others. The bottom of this I form in corrugations, so as to increasethe fire surface. This effect may be produced also by forming it withlozenge form elevations, orby any other means, so as to produce the sameresult. The longitudinal partitions A are inclined, as shown, so thatthe syrup, as it passes from one to the other, shall be gradually cooledby being less exposed to the direct action of the fire. In the bottom ofthe side compartments I also form a longitudinal gutter or corrugation,for the same purpose-as above stated. In these gutters, commencing atthe central compartment on each side, I make openings through theinclined partition, at alternate ends of each, so that the juice, firstplaced in the central compartment, flows successively through the entirelength of each. The vent bars E are attached to guides, K, on the endsof the pan, and are carried over its upper surface; through these,set-screws, I, pass, attached to the valves or plugs D, which close theopenings O/through the partitions. These bars are united by a rod, F,running longitudinally across the pan, and controlled by a screw turnedby the crank G. By this means the valves may he slid over the holes asmuch as may be desired. The fire is built upon the grate-bars at thefront of the furnace, marked B. These grate-bars are not extended to theoutside of the pan A, but are closed by the inclined grated shields B B,so as to prevent the wood getting under the outside partitions. H is thefurnace door. By this means the juice first exposed to the hottest ofthe fire is gradually, as it thickens, cooled, flowing towards theoutside partitions, from which it is drawn off.

Having fully explained the construction and operation of my improvedevaporatoywhat I claim as my invention, and seek to secure by LettersPatent, is

1. Constructing the pan of an evaporator with inclined longitudinalpartitions forming compartments, arranged one higher than the other, andwith alternately disposed openings, so that the juice shall fiow fromthe central and highest part through the length of all the partitions,substantially as and for the purpose set forth.

2. I claim the rod F and bars E E, in combination with the set-screws Iand valves D, substantially as and for the purpose set forth.

3. Constructing the bottoms of evaporators with corrugations or otherirregularities of surface, substantially as and for the purpose setforth. r

4. I claim the arrangement of the grate-bars B and grated guards B,substantially as and for the purpose set forth. r

In testimony whereof Ihave signed my name to this specification in thepresence of two subscribing witnesses.

JOSEPH J. STOUT.

Witnesses:

ALEX. A. Four, CREIGHTON DANDY.

